decade

十年間

十年の長さの期間。

やさしい英語で： A period of ten years.

• We lived there for a decade.
• The town has grown over the past two decades.
• What will change in the next decade?

類義語： ten years

よく使う表現： a decade ago, over a decade, the next decade

ディケード

一方が他方の十倍になる二つの値の間の区間。

やさしい英語で： An interval between two values where one is ten times the other.

• The frequency increased by one decade.
• Each decade on this scale represents a tenfold increase.
• The measured values span three decades, from one to one thousand.

よく使う表現： one decade higher, a frequency decade, per decade increase